Dynamite punch



Aug. 21, 1923. 1,465,300

' R. M. FUZZARD DYNAMITE PUNCH Filed Sent. 30, 1922 WITNESSES INVENTDR R. NLFuzzcud WWW By Patented Aug. 21, 1923.

RALPH MUNROE FUZZARD, OF BEIAMI, FLORIDA.

DYNAMITE PUNCH.

Application filed September 30, 1922.

To all whom it may concern Be it known that I, RALPH Mormon F UZ- znnma citizen of the United States, and'a punch which will effectively residentof Miami, in the county of Dade and State of Florida, have invented certain new and useful Improvements in Dynamite Punches, of which the following is a specification.

This invention relates to cially adapted for punching stick of dynamite preparatory to inserting the cap in the cartridge. Y

According to present practice, a hole is punched in a stick of dynamite either by using a pointed stickof hard wood or by using thepointed end of a cap crimper, both of which methods are tiresome and hard on the hands,'as a dynamite cartridge is hard. Therefore, an important object of this invention is to provide a dynamite hold a stick of dynamite in position during the opera; tion of the punch so that a hole may be safely and expeditiously formed in the stick. 7

Further, the invention forming the subjectmatter of this application aims to provide adynamite punch of simple means punches espewhereby a hole may be formed either in one end or the side of the stick.

A further object is to provide a dynamite punch'which is of highly simplified construction, durable in use and cheap to manufacture.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawing forming a part of this application, and in which like numerals are employed to designate like parts throughout the same,

Fig. 1 is a perspective of the improved punch, one position of the pointed punch member or plunger being shown in full lines and the other position of the plunger being shown in dotted lines,

Fig. 2 is a detail horizontal sectional view taken on line 22 of Fig. l, and

Fig. 3 is a side elevation of a slightly modified form of plunger.

In the drawings, wherein for the purpose of illustration is shown .a preferred embodiment of the invention, the numeral 5 designates a base upon which a standard 6 is mounted and as upper and lower dynamite stick supporting a hole in a illustrated in Fig. 1,

Serial No. 591,590.

brackets 7 and 8 respectively are connected to the standards. It 'will be observed that the lower bracket 8 may be secured in position by means of a set screw 9 or other suitable fastening devices, the brackets being provided with the standards while the set screw 9 is adapted to securely engage the standard. The upper bracket is secured to the standard by means of a fastening device 12 of any suitable type.

Of course in carrying out the invention the upper and lower brackets 7 and 8 re-,

spectively are formed with recesses to receive the stick of dynamite designated by the numeral 13 and when the stick of dynamite is partially received within the recesses in the brackets 7 and 8, it is securely held in position so that when the plunger 15 descends the stick of dynamite cannot move laterally or tilt.

The plunger 15 has its lower end formed with a penetrating point 16 and the plu'nger is slidable through an overhanging head 20 mounted in any upper end of the standard. A set screw 22 may be employed for securing the overhanging head in a set position so that the position of the plunger 15 may be varied as theoccasion requires.

The plunger is normally held in a re tracted position my means of a coil sprin 26 confined between the head and the handle 27. When force is exerted on the handle 27 the pointed end 16 will descend and thereby form the desired hole in the stick of dynamite. When the plunger 15 is arranged in a vertical position as illustrated in full lines in Fig. 1, a hole will be formed in one end of the stick of dynamite and the plunger may also be arranged as illustrated in dotted lines in Fig. 1, in which case it is shown as extended through a diagonally extending guide 30 in the terminal portion of the overhanging head.

In the form of the invention illustrated in Fig. 3, the plunger which is designated by the numeral 40 may be formed with a spiral groove 41 for the reception of a pin by means of which the plunger may be rotated during its descent.

In operation. the plunger 15 is positioned as illustrated in full lines in Fig. 1 and the stick of dynamite is positioned upon the base and is supported in proper position by the upper and lower brackets 7 and 8. The

suitable manner on the an aperture to receive plunger is now depressed and the penetrating point 16 enters one end of the dynamite for forming the desired hole into which the cap may subsequently be inserted. In carrying out the invention, the plunger or punch is made of cast brass or malleable iron so that there will be no possibility of friction or sparks which would be likely to explode the dynamite.

A punch constructed in accordance with this invention works about three times as fast as the old method and is not in any way hard on ones hands. If desired, the plunger may be positioned as illustrated in dotted lines in Fig. 1 in which case a diagonally extending opening will be formed.

It is to be understood that the form of the invention herewith shown and described is to be taken as a preferred example of the same and that such minor changes'in a1- rangement and construction of parts may be made will remain within the spirit of the invention and the scope of what is claimed.

Having thus described the invention, what is claimed is:-

1. A punch for dynamite sticks comprising a base, a standard mounted on said base, upper and lower bracl' ets connected to saic standard and having recesses adapted to partially receive a stick of dynamite, an overhanging head extending laterally from said standard, and a plunger slidable through'said head and having a pointed end to engage the stick of dynamite whereby to form a hole therein. 2. A punch for dynamite sticks compris ing a base, a standard mounted on said base, upper, and lower brackets connected to said standard and having recesses adapted to partially receive a stick of dynamite, an everhanging head extending laterally from said standard, a plunger slidable through said head and having 'a pointed end to engage the stick of dynamite whereby to form a hole therein, and a coil spring surrounding said plunger and normally holding the same in a retracted position said plunger being provided with a handle constituting a stop for one end of the'coil spring.

3. A. punchfor dynamite sticks comprising a base, a standard mounted on said base, upper and lower brackets connected to said standard and having recesses adapted to partially receive a stick of dynamite, an overhanging head extending laterally from Cal said standard, a plunger slidable through 7 said head and having a pointed end to en gage the stick of dynamite whereby to form a hole therein, a coil spring surrounding said plunger and normally holding the same in a retracted position said plunger being provided with a handle constituting a stop for one end of the coil spring, said overhanging head being provided with vertical and diagonally extending openings to slidably receive 'a punch.

4. A dynamite punch comprising a base, a standard mounted thereon, brackets mounted on said standards, an overhanging head "extending horizontally from said standard and adjustably connected thereto, said head being provided with a v'e'rtical and an inclined opening, a punch extending through one of, said openings, and spring means to normally hold said punch in a retracted position.

RALPH Mormon FUZZVARD- 

